It's hard to say without a more technical description of the output you want, but my guess is that you want GD::Graph (probably GD::Graph::bars, specifically) with the "cumulate" option.

Your question would be better off in Seekers of Perl Wisdom. See Where should I post X? for more information.

There are lots of ways to make graphs with perl, but I am not sure what you mean by a "stacked graph". Do you mean a graph of stacks (i.e. a stacked bar chart), or do you mean a stack of graphs (i.e. multiple graphs displayed in layers). Assuming you want stacked bar charts, you might look into GD::Graph or Chart.

The original poster, dani_cv_74, posted this question multiple times, in different sections of the Monastery; probably unable to find his original post.

For an understanding of where each type of post belongs, please refer to The Perl Monks Guide to the Monastery. Once a message is posted, it doesn't need to be reposted again. It may take a few minutes for a high ranking monk to approve the node into the section where it's been posted (or move it to the appropriate section), but have a little patience and it will happen. ...and if it's a good node, it might even get sent to the Front Page of the Monastery. For details, you might want to read Why can't I see my post?.

All of the "reaped" duplicate posts will be reparented under this node, just to keep the clutter down.

Please stop reposting this question in other areas. Once it is posted the janitors will move it if needed, you do not need to repost.

Thanks every one. I will check with GD::Graph or Chart I meant Stacked Bar Chart Graph...sorry for the confusion... Best Regards, Dan.

A tip reguarding your duplicate posts: You can locate the nodes you have posted by clicking on your name (top right) and then clicking on the number next to "Writeups". You will even see the nodes you posted that haven't been approved yet. (This site uses moderation.)